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    Mass Car Audio's Avatar
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    Weird DMM reading for Dual 6 ohm sub

    I have a dual 6 ohm sub and today I went and check to see what the impediance reading would be per coil with my dmm, for some weird reason i'm getting 2.4 ohms on each voice coil and when wired up in parallel I'm getting 1.5 ohms. Does anyone know why I would be getting this reading ?







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    Re: Weird DMM reading for Dual 6 ohm sub

    dual 3?

    lol



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    Re: Weird DMM reading for Dual 6 ohm sub

    What sub do you have?



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    Re: Weird DMM reading for Dual 6 ohm sub

    Your positive it's a dual 6?



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    Re: Weird DMM reading for Dual 6 ohm sub

    Its a visonik V159D6 competition series subwoofer, 700rms dual 6 ohm, 3'' 4 layer coils with a 190oz double stacked magnet. It works perfectly fine and I have only been using it for around 2 months. I also checked a old school kicker L5 15 dual 4 ohm and one coil reads 3.8 ohms and the other reads 5.3 ohms. I know my DMM works because I just checked a bunch of doides and resistors on 3 different amps.
    Last edited by Mass Car Audio; 01-18-2009 at 04:42 PM.




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    Re: Weird DMM reading for Dual 6 ohm sub

    first of all you are reading the dcr of the coils not the nominal impedence



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    Re: Weird DMM reading for Dual 6 ohm sub

    Quote Originally Posted by bonesninja View Post
    first of all you are reading the dcr of the coils not the nominal impedence
    Oh ok, how do I check the nominal impedence ?




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    Re: Weird DMM reading for Dual 6 ohm sub

    Quote Originally Posted by Mass Car Audio View Post
    Oh ok, how do I check the nominal impedence ?
    you don't....it is a rating given by the manufacturer that is close but not exact. Its kinda like them saying you bought a 42" plasma but when you measure it at home its real only 40.9".


    but something still doesn't sound right on your readings....i would suspect its either not a dual 6 or your meter is wacked



    Quote Originally Posted by chase007 View Post
    if u need a box...I'l taked 3 years of shop class so i know what im doing.

    after i explained to him there's more to a proper box than boards and glue and he should practice before trying to sell boxes to others

    Quote Originally Posted by chase007 View Post
    yes personaly if it was some one elce that just starting making boxes but i'v taken shop for 3 years now...Making a lil box is nothing i don't need to pratice on a box to get it right i learned alot of stuff from 1 box and i can fix that in my next box
    after i told him that customers would care about the looks of the box

    Quote Originally Posted by chase007 View Post
    if u want some thing that looks pretty why don't u find a black guy with a big d*ck.

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    Re: Weird DMM reading for Dual 6 ohm sub

    sounds like a coil is going on the L5 though.



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    Re: Weird DMM reading for Dual 6 ohm sub

    Quote Originally Posted by bonesninja View Post
    you don't....it is a rating given by the manufacturer that is close but not exact. Its kinda like them saying you bought a 42" plasma but when you measure it at home its real only 40.9".


    but something still doesn't sound right on your readings....i would suspect its either not a dual 6 or your meter is wacked

    I know its not my dmm I just got a new one yesterday and I have checked other things with it and it works perfect.




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    Re: Weird DMM reading for Dual 6 ohm sub

    Quote Originally Posted by 99oldsintrigue View Post
    sounds like a coil is going on the L5 though.
    Ya that subs been through hell and back, I'm surprised it still works..lol




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